freebsd-dev/usr.bin/window/ttinit.c

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1994-05-27 12:33:43 +00:00
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Edward Wang at The University of California, Berkeley.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char sccsid[] = "@(#)ttinit.c 8.1 (Berkeley) 6/6/93";
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static char rcsid[] =
"$FreeBSD$";
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#endif /* not lint */
#include "ww.h"
#include "tt.h"
#include <stdlib.h>
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int tt_h19();
int tt_h29();
int tt_f100();
int tt_tvi925();
int tt_wyse75();
int tt_wyse60();
int tt_zapple();
int tt_zentec();
int tt_generic();
struct tt_tab tt_tab[] = {
{ "h19", 3, tt_h19 },
{ "h29", 3, tt_h29 },
{ "f100", 4, tt_f100 },
{ "tvi925", 6, tt_tvi925 },
{ "wyse75", 6, tt_wyse75 },
{ "wyse60", 6, tt_wyse60 },
{ "w60", 3, tt_wyse60 },
{ "zapple", 6, tt_zapple },
{ "zentec", 6, tt_zentec },
{ "generic", 0, tt_generic },
0
};
ttinit()
{
int i;
register struct tt_tab *tp;
register char *p, *q;
register char *t;
tt_strp = tt_strings;
/*
* Set output buffer size to about 1 second of output time.
*/
i = MIN(wwbaud/10, 512);
if ((tt_ob = malloc((unsigned) i)) == 0) {
wwerrno = WWE_NOMEM;
return -1;
}
tt_obp = tt_ob;
tt_obe = tt_ob + i;
/*
* Use the standard name of the terminal (i.e. the second
* name in termcap).
*/
for (p = wwtermcap; *p && *p != '|' && *p != ':'; p++)
;
if (*p == '|')
p++;
for (q = p; *q && *q != '|' && *q != ':'; q++)
;
if (q != p && (t = malloc((unsigned) (q - p + 1))) != 0) {
wwterm = t;
while (p < q)
*t++ = *p++;
*t = 0;
}
for (tp = tt_tab; tp->tt_name != 0; tp++)
if (strncmp(tp->tt_name, wwterm, tp->tt_len) == 0)
break;
if (tp->tt_name == 0) {
wwerrno = WWE_BADTERM;
return -1;
}
if ((*tp->tt_func)() < 0) {
wwerrno = WWE_CANTDO;
return -1;
}
if (wwgetttysize(0, &tt.tt_nrow, &tt.tt_ncol) < 0)
return -1;
tt.tt_scroll_top = 0;
tt.tt_scroll_bot = tt.tt_nrow - 1;
return 0;
}